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EXHIBIT R -2B <br />SURFACE WATER SUPPLY IMPACT RATING <br />Water use and distance between the site and the water supply are prime <br />considerations in assessing impact for this subcategory. Upstream <br />water supplies are not considered for this evaluation since they <br />cannot be endangered by a site downstream. Downstream water <br />supplies within 5 miles are considered. A "water supply" is defined as a <br />water intake in a river or as an impoundment (pond or reservoir) having a <br />suface area of at least 2 acres. <br />Downstream Distance <br />Between site an <br />Supplies (mires) <br />0 - 1.0 <br />1.1 - 2.0 <br />2.1 - 3.0 <br />3.1 - 4.0 <br />4.1 -- 5.0 <br />5 -22 -91 <br />Impact Rating, B <br />5 <br />4 <br />3 <br />2 <br />1 <br />33 <br />